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对３４份棉花材料的抗红铃虫性进行了鉴定，结果为：Ｂｔ棉原材料基本未受红铃虫为害，属免疫类型；抗虫级材料有４个；中抗级材料１６个；感虫级材料１１个；高感材料２个。用标准子害率（对照子害率与平均子害率之和的平均值），进行棉花抗性分级有可能提高结果的准确性、稳定性和重演性。
The anti-bollworm resistance of 34 cotton cultivars were identified. The results showed that the Bt cotton raw materials were not affected by the genus Pink bollworm and were immunized; 4 insecticidal grade materials; 16 middle-class resistant materials; Eleven materials; high sense of material 2. Grading cotton resistance with a standard offspring rate (average of control and average offspring rates) may improve the accuracy, stability and reproducibility of the results.